The former deputy director of the FBI recounts his career; discusses how law enforcement battles terror threats, Russian crime, and attacks by the White House itself on the U.S. Constitution; and offers details of the events leading up to his firing by Donald Trump. He recounts in compelling detail the time between Donald Trump's November 2016 election and his firing, set against a narrative spanning two decades when the FBI's mission shifted to a new goal: preventing terrorist attacks on Americans. But as McCabe shows, right now the greatest threat to the United States comes from within, as President Trump and his administration ignore the law, attack democratic institutions, degrade human rights, and undermine the U.S. Constitution that protects every citizen.